EP 2116500 A1 20091111 - Elevator communication system
Title (en)
Elevator communication system
Title (de)
Aufzugskommunikationssystem
Title (fr)
Système de communication d'ascenseur
Publication
Application
Priority
EP 08155943 A 20080509
Abstract (en)
An elevator communication system comprises a first voice communication device (12, 14, 16) provided at a car (10) of an elevator system; a second voice communication device (24; 32, 42) provided at a control room (20) of the elevator system and/or a rescue service (30, 40); and a voice communication means (50-58) for providing digital voice communication between the first and second voice communication devices (12, 14, 16; 24; 32, 42). The voice communication means (50-58) comprises a time division multiplexing bus (50) allowing both the digital voice communication and a data communication of a safety circuit of the elevator system so that the same communication media on the traveling cable of the elevator system can be used also for the digital safety circuit of the elevator system.
IPC 8 full level
B66B 5/00 (2006.01)
CPC (source: EP)
B66B 1/34 (2013.01); B66B 1/3446 (2013.01); H04M 11/068 (2013.01)
Citation (applicant)
- EP 1748015 A1 20070131 - MITSUBISHI ELECTRIC CORP [JP]
- EP 1783084 A1 20070509 - INVENTIO AG [CH]
- JP 2007124154 A 20070517 - MATSUSHITA ELECTRIC WORKS LTD
- US 6615175 B1 20030902 - GAZDZINSKI ROBERT F [US]
Citation (search report)
- [X] GB 2226428 A 19900627 - HITACHI LTD [JP]
- [A] US 2004055828 A1 20040325 - KAVOUNAS GREGORY T [US]
- [A] JP H10182025 A 19980707 - MITSUBISHI ELECTRIC BILL TECH
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
DOCDB simple family (application)
EP 08155943 A 20080509; EP 2009055400 W 20090505